Introduction
On May 29, 2019, at 0845 central daylight time, a Boeing B75N1, registration N60955, was involved in an accident near Fredericksburg, Texas. The airplane sustained substantial damage. The private pilot, who was also the owner, received serious injuries. The flight was conducted under Title 14 Code of Federal Regulations Part 91 as a personal flight.
Accident Narrative
The pilot reported that he overflew the runway of a private airstrip but did not land because he believed the grass was too long. After overflying the airstrip, while the airplane was in a climb, the engine began to run rough. A forced landing was subsequently made in rough, uneven terrain. The airplane sustained substantial damage, including damage to the left wings, right wings, and fuselage.
Pilot's Account
According to the pilot, “we believe there was a mechanical malfunction in that one blade feathered possibly from improper torque on the bolts. We have [a] verbal statement from [the] previous owner that he changed the pitch on propeller. He is not [a] certified mechanic.”
Weather Conditions
At 0835, the Gillespie County Airport (T82) AWOS-3 recorded a temperature of 75°F and a dewpoint of 66°F. According to the icing probability chart contained within Federal Aviation Administration Special Airworthiness Information Bulletin CE-09-35, atmospheric conditions were conducive for serious icing at glide power. It is unknown if the engine was at glide power or if the pilot had selected to use carburetor heat.
Post-Accident Examination
A post-accident examination of the airframe, engine, and propeller revealed no mechanical anomalies that would preclude normal airplane operation.